In order to do this odd job, you must have a lowrider with
hydraulics. The lowrider cars in this game are: Blade, Broadway, Remington,
Savanna, Slamvan, Tornado and Voodoo. You can usually find a Blade on
Cesar's street, (where the "CV" icon is, on the same street as your savehouse
in El Corona, south of Unity Station) next door to Cesar. You can also find
other lowriders on this street, parked at the houses. You can also use the
Savanna that you used in the mission, "Cesar Vialpando". If you find a
lowrider that doesn't have hydraulics, just take it to Loco Low's and give
it hydraulics for $1500.

To begin this odd job, walk into the small red marker in front of a man
standing near Unity Station (the east side of the station), answer positively,
then drive into the red marker to begin the competition. This is just like
the story mission you just did and it is even in the same location. You can
also place a wager just like last time. This is a bit tougher though, with
more arrows appearing. The key is to focus on the beat of the music and
bounce along with the rhythm. If you are struggling, try lowering the wager
and it should be easier to win.